Baseball Rookies, Letter "O"

This is the list of all Baseball Rookies with a lastname starting with "O":

Pete O'BrienJohn O'BrienPeter O'BrienJustin O'ConnerDarren O'DayBilly O'DellJohn O'DonoghueLefty O'DoulBrian O'GradyGreg O'HalloranRyan O'HearnBrian O'KeefePaul O'NeilTyler O'NeilPaul O'NeillTyler O'NeillMichael O'NeillMike O'NeillSean O'SullivanJim O'TooleTrevor OaksJohnny OatesBarack ObamaBailey OberBrett OberholtzerAlex OchoaJosh OckimeyRougned OdorJake OdorizziJose OffermanRowland OfficeAlexi OgandoShinnosuke OgasawaraChad OgeaBen OglivieSadaharu OhSeung-Hwan OhTomokazu OhkaRoss OhlendorfShohei OhtaniBob OjedaHideki OkajimaKazuma OkamotoChris OkeyJohn OlerudSteve OlinJose OlivaTony OlivaJared OlivaEdward OlivaresAl OliverGene OliverAndrew OliverAndy OliverHector OliveraMiguel OlivoScott OlsenGreg OlsonGregg OlsonKarl OlsonMatt OlsonReese OlsonMike OltBrian OmogrossoJorge OnaPaul OneillJose OquendoRey OrdonezMagglio OrdonezKevin OriePaulo OrlandoJonathan OrnelasJesse OroscoLee OrrJohnny OrsinoJoe OrsulakPhil OrtegaOliver OrtegaDavid OrtizJunior OrtizLuis OrtizJhailyn OrtizJoey OrtizDan OrtmeierDonovan OsborneClaude OsteenDarrell OsteenJoe OstrowskiAl OsunaRoberto OsunaJose OsunaRoy OswaltAmos OtisAkinori OtsukaEd OttMel OttAdam OttavinoGlenn OttoJosh OutmanJames OutmanLyle OverbayDillon OvertonConnor OvertonJohan OviedoSpike OwenHenry OwensJerry OwensJeremy OwensJim OwensRudy OwensMicah OwingsChris OwingsPablo OzunaMarcell Ozuna